Difference UWB antenna with high common mode rejection ratio and high rectangle degree trapped wave

The utility model discloses a difference UWB antenna with high common mode rejection ratio and high rectangle degree trapped wave, this antenna adopt dual -port difference microstrip feed form, carry out the feed through difference band pass filter electrode couple on the floor, have realized ultra wide band work. Difference band pass filter's introduction makes this antenna reach high common mode rejection ratio's effect. Introduce a set of syntonizer respectively on the floor with near the difference microstrip feeder, realize the trap characteristic of high rectangle degree in probably producing the frequency band that disturbs with the other system to the length of adjustment syntonizer can be controlled and fall into wave frequency and bandwidth. 本实用新型公开了种具有高共模抑制比和高矩形度陷波的差分UWB天线，该天线采用双端口差分微带馈电形式，通过地板上的差分带通滤波器对偶极子进行馈电，实现了超宽带工作。差分带通滤波器的引入，使该天线达到了高共模抑制比的效果。在地板上和差分微带馈线附近分别引入组谐振器，在可能与其他系统产生干扰的频带内实现高矩形度的陷波特性，并且调整谐振器的长度可以控制陷波的频率和带宽。